161878240

素因数分解:

$2^5\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4457}}^1$

素因数の和:4699

約数の個数: 48

約数和(自身を含む): 384208272

約数和(自身を除く): 222330032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 227, 454, 908, 1135, 1816, 2270, 3632, 4457, 4540, 7264, 8914, 9080, 17828, 18160, 22285, 35656, 36320, 44570, 71312, 89140, 142624, 178280, 356560, 713120, 1011739, 2023478, 4046956, 5058695, 8093912, 10117390, 16187824, 20234780, 32375648, 40469560, 80939120, 161878240]

約数ペア:

[(1, 161878240), (2, 80939120), (4, 40469560), (5, 32375648), (8, 20234780), (10, 16187824), (16, 10117390), (20, 8093912), (32, 5058695), (40, 4046956), (80, 2023478), (160, 1011739), (227, 713120), (454, 356560), (908, 178280), (1135, 142624), (1816, 89140), (2270, 71312), (3632, 44570), (4457, 36320), (4540, 35656), (7264, 22285), (8914, 18160), (9080, 17828)]